Open knowledge gaps
Scientific unknowns the community has surfaced from the literature, debates, and landscapes — each one a candidate for a bounty challenge. Pick a gap, fund it, and the substrate runs the resolution.
Showing neuroscience gaps, sorted by Newest.
Why do ongoing debates persist about water transport mechanisms across membranes despite extensive research?
neuroscience resolvedThe abstract acknowledges that water transport is 'so intricate that there are still some debates' but doesn't specify what aspects remain controversial. Resolving these debates is essential for understanding brain water…
gap-pubmed-20260410-174240-f7f59fcaWhat molecular mechanisms underlie the differential functional roles of distinct OX2R C-terminal regions?
neuroscience resolvedThe study shows that different C-terminal segments (369-384, 385-414, 415-444) have distinct effects on signaling pathways, surface expression, and internalization, but the underlying molecular mechanisms are not explain…
gap-pubmed-20260410-165602-f7db233aWhich specific glymphatic clearance mechanisms are most therapeutically tractable for enhancing protein aggregate removal?
neuroscience resolvedWhile glymphatic dysfunction was identified as key to neurodegeneration, the debate did not resolve which molecular components (AQP4 polarization, perivascular flow, CSF pulsatility) offer the best therapeutic targets. T…
gap-debate-20260410-112805-c63cab69How do circadian rhythm disruptions mechanistically impair glymphatic clearance of tau and amyloid-beta?
neuroscience resolvedWhile the debate acknowledged that circadian disruption affects glymphatic function, the specific molecular mechanisms linking circadian clock dysfunction to reduced protein clearance remain unclear. This knowledge gap l…
gap-debate-20260410-112754-64200370What synaptic receptor mechanisms mediate tau uptake during trans-synaptic transfer?
neuroscience resolvedThe trans-synaptic transfer pathway was discussed but the specific receptors and uptake mechanisms that facilitate tau internalization at synapses were not identified. Defining these receptors could reveal druggable targ…
gap-debate-20260410-112730-17da11fbDo NMDA receptor-mediated circuit dysfunctions operate independently of spine loss and structural degeneration?
neuroscience resolvedEvidence suggested NMDA receptors mediate synaptic depression but not spine loss, indicating multiple independent pathways. The debate didn't clarify how these functional and structural pathways interact or whether they…
gap-debate-20260410-112441-442e8defDoes glymphatic enhancement from sleep interventions directly cause tau clearance or merely correlate with sleep improvement?
neuroscience resolvedThe mechanistic chain from sleep intervention to glymphatic flow to actual tau clearance lacks direct experimental validation. Alternative explanations like general sedation effects were raised but not definitively ruled…
gap-debate-20260410-111124-5e2e6589What are the specific molecular mechanisms linking ADCY8 to spatial memory consolidation in hippocampal circuits?
neuroscience partially_addressedWhile the debate proposes ADCY8-cAMP-PKA-CREB pathways, the exact molecular steps connecting ADCY8 activity to spatial memory encoding remain undefined. Understanding this pathway is critical for developing targeted ther…
gap-debate-20260410-105819-f7d141d0How can subcellular compartmentalization defects be measured as biomarkers in living neurons?
neuroscience partially_addressedThe clinical trialist identified this as a 'fatal clinical flaw' - no validated biomarkers exist to measure restored compartmentalization in patients. Without measurable endpoints, therapeutic approaches targeting subcel…
gap-debate-20260410-075000-7396040aTrans-synaptic tau spreading and propagation mechanisms in AD
neuroscience partially_addressed 83%Tau pathology spreads through synaptically connected brain regions in Alzheimer disease following a stereotyped anatomical pattern. Mechanisms of trans-synaptic tau propagation via extracellular vesicles, tunneling nanot…
gap-tau-prion-spreadingLysosomal dysfunction and cathepsin leakage in Alzheimer disease progression
neuroscience partially_addressed 79%Lysosomal membrane permeabilization releasing cathepsins triggers NLRP3 inflammasome activation and neuronal apoptosis. Contribution of lysosomal dysfunction upstream of Abeta/tau pathology and therapeutic strategies to…
gap-lysosomal-cathepsin-adAPOE4-driven lipid metabolism dysregulation in astrocytes and its role in AD
neuroscience partially_addressed 82%APOE4 is the strongest genetic risk factor for late-onset AD. How APOE4 specifically disrupts lipid homeostasis in astrocytes, cholesterol transport, and its downstream effects on neuronal function are poorly defined.
gap-apoe4-lipid-metabolismMicroglial subtypes in neurodegeneration — friend vs foe
neuroscience partially_addressed 70%Analyze the spectrum of microglial activation states (DAM, homeostatic, inflammatory) and their distinct roles in AD, PD, and ALS. Identify pharmacological targets for shifting microglia toward protective phenotypes.
gap-microglial-subtypes-20260402004119Circuit-level neural dynamics in neurodegeneration
neuroscience partially_addressed 70%Analyze circuit-level changes in neurodegeneration using Allen Institute Neural Dynamics data. Focus on: (1) hippocampal circuit disruption, (2) cortical dynamics alterations, (3) sensory processing changes. Identify cir…
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